How long does it take to fly to Seattle?

Flight times vary depending on what airport in Idaho you fly out of and what airport in Seattle you fly into. For example, flying from Lewiston to Seattle takes 1h 23m on average. On the other hand, flying from Boise to Seattle takes 1h 33m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

What airlines fly to Seattle?

Alaska Airlines, Delta and Hawaiian Airlines are the top three most popular airlines that fly to Seattle from Idaho according to our data. Alaska Airlines is the first choice among our users, with 56% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 3 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

How many flights depart from Idaho to Seattle on average per day?

147 flights are operational daily from Idaho to Seattle as of August 2025. The most popular departure time for this route is 4:00PM, with 51% of flights per day taking off at noon.

How many flights depart from Idaho to Seattle on average per week?

The number of flights available between Idaho and Seattle is 1,034 per week as of August 2025. The most frequent departure day is Wed, with 16% of weekly flights leaving on this day.

What is the cheapest airline that flies from Idaho to Seattle/Tacoma Intl?

Alaska Airlines, Southwest, and Delta are the most popular carriers operating from Idaho to Seattle/Tacoma Intl

When did momondo last update prices for flights from Idaho to Seattle/Tacoma Intl Airport?

Prices for flights from Idaho to Seattle/Tacoma Intl Airport refresh daily.

How many operators does momondo search for flights from Idaho to Seattle/Tacoma Intl Airport?

As of August 2025, there are 3 operators available to choose from for flights from Idaho to Seattle/Tacoma Intl Airport.

How old do you have to be to fly from Idaho to Seattle/Tacoma Intl Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to Seattle/Tacoma Intl Airport.

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$55 Cheap Flights from Idaho to Seattle in 2025

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Find the cheapest flights from Idaho to Seattle

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

7:30 am - 8:12 amBOI-SEA

1h 42mnonstop

10:30 am - 1:06 pmSEA-BOI

1h 36mnonstop

$117Delta

Find Deal

mié., ago. 20 - mar., ago. 26

4:00 pm - 6:45 pmBOI-SEA

3h 45m1 stop

9:40 pm - 12:08 amSEA-BOI

1h 28mnonstop

$127Hawaiian Airlines

Find Deal

mar., sep. 9 - mié., sep. 17

4:00 pm - 6:45 pmBOI-SEA

3h 45m1 stop

7:50 am - 12:03 pmSEA-BOI

3h 13m1 stop

$136Alaska Airlines

Find Deal

mar., sep. 9 - mié., sep. 10

9:54 am - 3:03 pmGEG-SEA

5h 09m1 stop

5:42 pm - 6:50 pmSEA-GEG

1h 08mnonstop

$151Alaska Airlines

Find Deal

mar., ago. 26 - mar., ago. 26

7:25 am - 3:10 pmBOI-SEA

8h 45m1 stop

6:15 am - 12:40 pmSEA-BOI

5h 25m1 stop

$156Southwest

Find Deal

mié., ago. 20 - mar., ago. 26

3:35 pm - 11:10 pmBOI-SEA

8h 35m2 stops

6:45 am - 5:20 pmSEA-BOI

9h 35m2 stops

$161Southwest

Find Deal

sáb., sep. 6 - mié., sep. 10

12:22 pm - 12:30 amBOI-SEA

13h 08m1 stop

7:00 am - 11:37 amSEA-BOI

27h 37m1 stop

$195Frontier

Find Deal

dom., sep. 7 - mié., sep. 10

12:33 pm - 12:34 amBOI-SEA

13h 01m1 stop

6:17 am - 11:38 amSEA-BOI

28h 21m1 stop

$205Frontier

Find Deal

jue., ago. 21 - jue., ago. 28

9:52 am - 3:19 pmBOI-SEA

6h 27m1 stop

7:00 am - 1:49 pmSEA-BOI

5h 49m1 stop

$231United Airlines

Find Deal

mié., ago. 20 - sáb., ago. 23

2:13 pm - 10:17 pmBOI-SEA

9h 04m1 stop

7:00 am - 1:49 pmSEA-BOI

5h 49m1 stop

$237United Airlines

Find Deal

mié., ago. 20 - jue., sep. 4

Delta flights from Idaho to Seattle

Our best Delta deals on Idaho to Seattle flight tickets

Delta

Aug 20

BOI7:30 amBoise Air Term. Gowen Fld

1h 42m

SEA8:12 amSeattle/Tacoma Intl

Aug 26

SEA10:30 amSeattle/Tacoma Intl

1h 36m

BOI1:06 pmBoise Air Term. Gowen Fld

$117

Find similar

Delta

Aug 23

BOI7:30 amBoise Air Term. Gowen Fld

1h 42m

SEA8:12 amSeattle/Tacoma Intl

Aug 31

SEA8:30 amSeattle/Tacoma Intl

1h 34m

BOI11:04 amBoise Air Term. Gowen Fld

$137

Find similar

Delta

Aug 30

GEG5:00 amSpokane

1h 12m

SEA6:12 amSeattle/Tacoma Intl

Aug 31

SEA1:45 pmSeattle/Tacoma Intl

1h 18m

GEG3:03 pmSpokane

$147

Find similar

Southwest flights from Idaho to Seattle

Our best Southwest deals on Idaho to Seattle flight tickets

Southwest

Aug 20

BOI7:25 amBoise Air Term. Gowen Fld

8h 45m

1 stop

SEA3:10 pmSeattle/Tacoma Intl

Aug 26

SEA6:15 amSeattle/Tacoma Intl

5h 25m

1 stop

BOI12:40 pmBoise Air Term. Gowen Fld

$156

Find similar

Southwest

Sep 6

BOI3:35 pmBoise Air Term. Gowen Fld

8h 35m

2 stops

SEA11:10 pmSeattle/Tacoma Intl

Sep 10

SEA6:45 amSeattle/Tacoma Intl

9h 35m

2 stops

BOI5:20 pmBoise Air Term. Gowen Fld

$161

Find similar

Southwest

Aug 20

BOI3:45 pmBoise Air Term. Gowen Fld

9h 20m

1 stop

SEA12:05 amSeattle/Tacoma Intl

Aug 26

SEA11:10 amSeattle/Tacoma Intl

10h 15m

2 stops

BOI10:25 pmBoise Air Term. Gowen Fld

$162

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

mié. 8/20

7:30 am-8:12 am

Nonstop1h 42m

Seattle/Tacoma Intl

mar. 8/26

10:30 am-1:06 pm

Nonstop1h 36m

$117

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

mar. 9/9

4:00 pm-6:45 pm

1 stop3h 45m

Seattle/Tacoma Intl

mié. 9/17

9:40 pm-12:08 am

Nonstop1h 28m

$127

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

mar. 9/9

4:00 pm-6:45 pm

1 stop3h 45m

Seattle/Tacoma Intl

mié. 9/10

7:50 am-12:03 pm

1 stop3h 13m

$136

SpokaneSeattle

GEG - SEA

GEGSEA

Spokane

mar. 8/26

9:54 am-3:03 pm

1 stop5h 09m

Seattle/Tacoma Intl

mar. 8/26

5:42 pm-6:50 pm

Nonstop1h 08m

$151

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

mié. 8/20

7:25 am-3:10 pm

1 stop8h 45m

Seattle/Tacoma Intl

mar. 8/26

6:15 am-12:40 pm

1 stop5h 25m

$156

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

sáb. 9/6

3:35 pm-11:10 pm

2 stops8h 35m

Seattle/Tacoma Intl

mié. 9/10

6:45 am-5:20 pm

2 stops9h 35m

$161

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

dom. 9/7

12:22 pm-12:30 am

1 stop13h 08m

Seattle/Tacoma Intl

mié. 9/10

7:00 am-11:37 am

1 stop27h 37m

$195

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

jue. 8/21

12:33 pm-12:34 am

1 stop13h 01m

Seattle/Tacoma Intl

jue. 8/28

6:17 am-11:38 am

1 stop28h 21m

$205

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

mié. 8/20

9:52 am-3:19 pm

1 stop6h 27m

Seattle/Tacoma Intl

sáb. 8/23

7:00 am-1:49 pm

1 stop5h 49m

$231

BoiseSeattle

BOI - SEA

BOISEA

Boise Air Term. Gowen Fld

mié. 8/20

2:13 pm-10:17 pm

1 stop9h 04m

Seattle/Tacoma Intl

jue. 9/4

7:00 am-1:49 pm

1 stop5h 49m

$237

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How to get the cheapest flight ticket from Idaho to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Seattle?

In general, October is the cheapest month to fly from Idaho to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $157. If you don’t want to visit Seattle in October, then you should wait until September to fly from Idaho, when ticket prices are also cheap, with an average price of $166.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Idaho is on a Thursday. momondo users have found tickets for Thursday departures for as low as $418. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Idaho because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $517.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Idaho in the evening is the least expensive time of day to depart. momondo users have found prices as low as $388 when looking at flights departing in the evening. Flights to Seattle are more costly in the morning, with an average ticket price of $475. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Idaho to Seattle/Tacoma Intl flight route?

Fly from Boise Air Term. Gowen Fld to Seattle/Tacoma Intl for the best Idaho - Seattle/Tacoma Intl flight prices

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Idaho when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $195 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Idaho for as low as $170 on momondo.

What cabin class options are available on Idaho to Seattle/Tacoma Intl flights?

There are 4 cabin classes available to choose from on Idaho to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Idaho to Seattle flights?

No. A direct flight is the cheapest option for a flight between Idaho to Seattle.

Cheap Idaho to Seattle flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Idaho to Seattle

Best Price Found	$55
Fastest flight time	1h 09m
Direct flights	Every day
Airports in Seattle	1 airport

The best one-way flight to Seattle from Idaho in the past 72 hours is $55. The best round-trip flight deal from Idaho to Seattle found on momondo in the last 72 hours is $117.

The fastest flight from Idaho to Seattle takes 1h 09m

Direct flights go from Idaho to Seattle every day.

There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

Search flight deals

When did momondo last update prices for flights from Idaho to Seattle/Tacoma Intl Airport?
Prices for flights from Idaho to Seattle/Tacoma Intl Airport refresh daily.
How many operators does momondo search for flights from Idaho to Seattle/Tacoma Intl Airport?
As of August 2025, there are 3 operators available to choose from for flights from Idaho to Seattle/Tacoma Intl Airport.
How old do you have to be to fly from Idaho to Seattle/Tacoma Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to Seattle/Tacoma Intl Airport.
What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?
The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from Idaho to Seattle?
momondo data reveals that the most frequently booked plane model on the route from Idaho to Seattle is Embraer 175, representing 49.73% of all bookings. The subsequent popular models are Boeing 737-900 Passenger/BBJ3 (winglets) at 15.36%, Boeing 737-800 Passenger/BBJ2 (winglets) at 11.48%, and Boeing 737 at 9.23%.

Best airlines flying from Idaho to Seattle

Compare and see reviews for airlines that fly from Idaho to Seattle with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $117	Free Cancellation	Rating 8.0 7,981 reviews	Search Delta flights
Hawaiian Airlines	PriceFrom $117	Free Cancellation	Rating 7.8 2,611 reviews	Search Hawaiian Airlines flights
Alaska Airlines	PriceFrom $121	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights

Leavenworth

Tacoma

SeaTac

Ocean Shores

Olympia

Renton

Kent

Federal Way

Puyallup

Lynnwood

Marysville

Tukwila

Kirkland

Lakewood

Fife

Centralia

Cle Elum

Shoreline

Westport

Redmond

Why use momondo?

Why should I use momondo to find a flight deal from Idaho to Seattle?

Finding the right flight to Seattle from Idaho is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Seattle quick and easy, saving you time and money.

Can I find flights from Idaho to Seattle with flexible booking policies on momondo?

All flight searches from Idaho to Seattle on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Idaho to Seattle?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Idaho to Seattle.

I’m not ready to book a flight from Idaho to Seattle right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Idaho to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.

An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Cheap flights from Idaho to Seattle from $55

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho to Seattle departing on 9/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Big names and deals

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Filter for what you want

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Price Alerts

Find the cheapest flights from Idaho to Seattle

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Cheap last minute flights

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Delta flights from Idaho to Seattle

Our best Delta deals on Idaho to Seattle flight tickets

Southwest flights from Idaho to Seattle

Our best Southwest deals on Idaho to Seattle flight tickets

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How to get the cheapest flight ticket from Idaho to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Seattle?

What is the cheapest day to depart on your flight to Seattle?

What is the cheapest time of day to depart on your flight to Seattle?

What is the cheapest Idaho to Seattle/Tacoma Intl flight route?

Fly from Boise Air Term. Gowen Fld to Seattle/Tacoma Intl for the best Idaho - Seattle/Tacoma Intl flight prices

How far in advance should I book a flight to Seattle?

What cabin class options are available on Idaho to Seattle/Tacoma Intl flights?

There are 4 cabin classes available to choose from on Idaho to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Idaho to Seattle flights?

No. A direct flight is the cheapest option for a flight between Idaho to Seattle.

What is the cheapest airline that flies from Idaho to Seattle/Tacoma Intl?

Alaska Airlines, Southwest, and Delta are the most popular carriers operating from Idaho to Seattle/Tacoma Intl

What airlines fly to Seattle?

How many flights depart from Idaho to Seattle on average per day?

147 flights are operational daily from Idaho to Seattle as of August 2025. The most popular departure time for this route is 4:00PM, with 51% of flights per day taking off at noon.

How many flights depart from Idaho to Seattle on average per week?

The number of flights available between Idaho and Seattle is 1,034 per week as of August 2025. The most frequent departure day is Wed, with 16% of weekly flights leaving on this day.

How long does it take to fly to Seattle?

Cheap Idaho to Seattle flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Idaho to Seattle

Best Price Found

Fastest flight time

Direct flights

Airports in Seattle

When did momondo last update prices for flights from Idaho to Seattle/Tacoma Intl Airport?

How many operators does momondo search for flights from Idaho to Seattle/Tacoma Intl Airport?

How old do you have to be to fly from Idaho to Seattle/Tacoma Intl Airport?

What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

What is the most popular plane model from Idaho to Seattle?

Best airlines flying from Idaho to Seattle

Compare and see reviews for airlines that fly from Idaho to Seattle with momondo

Traveling to a place near Seattle?

Why use momondo?

Why should I use momondo to find a flight deal from Idaho to Seattle?

Can I find flights from Idaho to Seattle with flexible booking policies on momondo?

How can momondo help me find flights from Idaho to Seattle?

I’m not ready to book a flight from Idaho to Seattle right now. Can momondo alert me if prices change?

An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Washington